Oral tooth model tray

Abstract

The invention provides an oral cavity tooth model tray, and belongs to the technical field of tooth model tray replacement. The oral cavity tooth model tray comprises a main tray body, two auxiliary tray bodies and a lifting box, a replacement mechanism comprises a first fixing block, second fixing blocks, a threaded hole, a threaded plug and a rubber sleeve, the first fixing block is fixedly installed on the left side of the main tray body, the second fixing blocks are fixedly installed on the left sides of the two auxiliary tray bodies, and the threaded hole is formed in the left side of the first fixing block. Threaded holes are formed in the left sides of the first fixing block and the second fixing block. Through the arrangement of the replacement mechanism, a worker sequentially rotates the threaded plugs to enable the three threaded plugs to be separated from the three threaded holes, so that the main tray body and the two auxiliary tray bodies are taken down, the new main tray body and the new auxiliary tray bodies are spliced together in a rubber sleeve sleeving mode, the three threaded plugs are rotated into the three threaded holes again, and then the replacement mechanism is replaced. Therefore, the tray body can be conveniently replaced, and the handle does not need to be discarded at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of tooth model tray replacement, in particular to an oral tooth model tray. Background Art

[0002] A dental model tray is an important tool used in the field of stomatology. It is a container-like device used to make oral dental impressions. In the process of making oral restorations, orthodontic appliances, etc., it is necessary to first obtain the precise shape of the patient's teeth, alveolar bones and surrounding soft tissues in the mouth. At this time, a dental model tray will be used, which is generally composed of a tray body and a handle.

[0003] When the existing equipment is in use, it is generally divided into reusable trays and disposable trays. The reusable trays need to be strictly disinfected after use, which is very cumbersome. Although the disposable trays are very convenient to use, the tray body and the handle part are often integrated, and the handle part is discarded together when discarded, causing unnecessary waste. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides an oral dental model tray that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides an oral dental model tray, comprising a main tray body, two auxiliary tray bodies and a lifting box.

[0007] A replacement mechanism, the replacement mechanism comprising:

[0008] A first fixing block, wherein the first fixing block is fixedly mounted on the left side of the main tray body, and a second fixing block is fixedly mounted on the left side of each of the two auxiliary tray bodies, and threaded holes are provided on the left sides of the first fixing block and the second fixing block;

[0009] Threaded plugs, three of which are provided and are respectively threadedly installed inside three threaded holes;

[0010] A rubber sleeve is provided between the main tray body and the two auxiliary tray bodies, and the main tray body and the two auxiliary tray bodies are combined into a horseshoe shape;

[0011] An angle adjustment mechanism, which is arranged inside the lifting box and is used to adjust the angle between the two auxiliary tray bodies and the main tray body;

[0012] A height adjustment mechanism is arranged inside the lifting box and is used to adjust the relative height between the two auxiliary tray bodies and the main tray body.

[0013] In a preferred embodiment, the angle adjustment mechanism includes:

[0014] A fixing plate, the fixing plate being rotatably mounted on the left side of the threaded plug, and three fixing plates are provided;

[0015] A fixed rod is rotatably sleeved on the surface of one of the fixed plates, and moving rods are rotatably sleeved on the surfaces of the other two fixed plates.

[0016] In a preferred embodiment, the height adjustment mechanism comprises:

[0017] A receiving box, wherein the receiving box is slidably sleeved on the surface of the lifting box;

[0018] A support plate is fixedly installed on the right side of the accommodating box, and the left side of the fixing rod is fixedly connected to the right side of the support plate.

[0019] In a preferred solution, the main pallet body and the sub-pallet body are both made of rubber material, the right sides of the containing box and the lifting box are both opened, a handle is fixedly installed on the left side of the containing box, a support frame is fixedly installed on the bottom of the inner wall of the lifting box, a limiting frame is fixedly installed on the top of the support frame, two limiting grooves are provided on the left side of the limiting frame, and the shape of the limiting groove is set to be a straight slot shape.

[0020] In a preferred solution, a sliding shaft is slidably sleeved inside the two limit grooves, a sub-gear is fixedly installed on the right side of the sliding shaft, a connecting rod is rotatably installed on the right side of the sub-gear, and the right sides of the two connecting rods are respectively fixedly connected to the left sides of the two moving rods.

[0021] In a preferred solution, a slide groove is provided on the left side of the accommodating box, a rotating rod is slidably installed inside the slide groove, the rotating rod is located above the limiting frame, a rotating handle is fixedly installed on the left side of the rotating rod, the rotating handle and the handle are staggered, the rotating rod is rotatably sleeved on the side wall of the lifting box, a main gear is fixedly installed on the right side of the rotating rod, and the main gear and the two sub-gears are meshingly connected.

[0022] In a preferred embodiment, a first rotating rod is rotatably installed on the right side of the main gear, and the left side of the first rotating rod is rotatably connected to one of the auxiliary gears. A second rotating rod is hinged inside the first rotating rod, and the left side of the second rotating rod is rotatably connected to another auxiliary gear.

[0023] In a preferred embodiment, a limiting strip is fixedly installed inside the lifting box, the left side of the limiting strip is opened, and a lifting block is rotatably installed on the right side of the main gear via a connecting shaft, and the lifting block is slidably sleeved inside the limiting strip.

[0024] In a preferred embodiment, a screw rod is rotatably installed at the bottom of the inner wall of the accommodating box, the top of the screw rod passes through the top of the accommodating box, a lifting handle is fixedly installed on the top of the screw rod, the screw rod is sleeved inside the lifting block, and the screw rod and the lifting block are threadedly connected.

[0025] In a preferred solution, bolts are fixedly installed on the left sides of the two sliding shafts, nuts are threadedly installed on the surface of the bolts, a patch is fixedly installed on the top of the nut, the bottom of the patch is in contact with the top of the limit frame, and the length of the patch is longer than the length of the bolt.

[0026] The present invention provides an oral dental model tray, which has the following beneficial effects:

[0027] 1. By setting up a replacement mechanism, the staff rotates the threaded plugs in sequence to disengage the three threaded plugs from the three threaded holes, thereby removing the main tray body and the two auxiliary tray bodies, and assembling the new main tray body and auxiliary tray body together by means of rubber sleeves, and re-rotating the three threaded plugs into the three threaded holes, so that the tray body can be easily replaced without discarding the handle.

[0028] 2. By setting up an angle adjustment mechanism, the two movable rods are moved in opposite directions at the same time, so that the angle of the fixed plate changes. Under the premise of not affecting the rotation of the threaded plug, the fixed plate can drive the threaded plug to change its angle, so that the angle of the sub-tray body changes with the pulling of the threaded plug, and the angles of the two sub-tray bodies are adjusted, so that the shape of the tray after the main tray body and the sub-tray body are assembled is no longer fixed. In actual use, it can be adjusted according to different jaw shapes. Compared with the existing technology, it has a wider range of applications.

[0029] 3. By setting a height adjustment mechanism, the lifting box is moved upward, driving the moving rod to move upward, and the relative height between the lifting box and the accommodating box changes. Since the fixed rod is fixedly installed on the support plate, the relative height between the fixed rod and the moving rod changes, so that the two sub-tray bodies move upward relative to the main tray body, so that the shape of the tray after the main tray body and the sub-tray body are assembled changes, and the sub-tray bodies on both sides are tilted relative to the main tray body, so that when facing some patients with abnormal jaw shapes, the accuracy of the jaw model can still be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the present invention;

[0032] Figure 2 An exploded view of a main pallet body and a secondary pallet body is provided for an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of the lifting box structure is provided in the right view for an embodiment of the present invention;

[0034] Figure 4 A partial cross-sectional view of a receiving box is provided for an embodiment of the present invention;

[0035] Figure 5 A partial cross-sectional view of a receiving box and a lifting box is provided for an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the structure of a restriction strip is provided for an embodiment of the present invention;

[0037] Figure 7 A structural schematic diagram of a lifting block is provided for an embodiment of the present invention;

[0038] Figure 8 A structural schematic diagram of a bolt is provided for an embodiment of the present invention.

[0039] In the figure: 1. main tray body; 2. sub-tray body; 3. lifting box; 401. first fixed block; 402. second fixed block; 403. threaded hole; 404. threaded plug; 405. rubber sleeve; 501. fixed plate; 502. fixed rod; 503. moving rod; 601. accommodating box; 602. supporting plate; 7. handle; 8. supporting frame; 9. limiting frame; 10. limiting groove; 11. sliding shaft; 12. sub-gear; 13. connecting rod; 14. sliding groove; 15. rotating rod; 16. rotating handle; 17. main gear; 18. first rotating rod; 19. second rotating rod; 20. limiting strip; 21. lifting block; 22. screw rod; 23. lifting handle; 24. bolt; 25. nut; 26. patch. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Reference Figure 1-8 The present invention provides a technical solution: an oral dental model tray, comprising a main tray body 1, two sub-tray bodies 2 and a lifting box 3, a replacement mechanism comprising a first fixed block 401, a second fixed block 402, a threaded hole 403, a threaded plug 404 and a rubber sleeve 405, the first fixed block 401 is fixedly installed on the left side of the main tray body 1, the left sides of the two sub-tray bodies 2 are fixedly installed with the second fixed block 402, and the left sides of the first fixed block 401 and the second fixed block 402 are both provided with threaded holes 403; three threaded plugs 404 are provided, and the three threaded plugs 404 are respectively threadedly installed in the inside of the three threaded holes 403; a rubber sleeve 405 is sleeved between the main tray body 1 and the two sub-tray bodies 2, and the shape of the main tray body 1 and the two sub-tray bodies 2 after being combined is a horseshoe shape; an angle adjustment mechanism, the angle adjustment mechanism is arranged inside the lifting box 3, and is used to adjust the angle between the two sub-tray bodies 2 and the main tray body 1; a height adjustment mechanism, the height adjustment mechanism is arranged inside the lifting box 3, Used to adjust the relative height between the two auxiliary tray bodies 2 and the main tray body 1. By setting a replacement mechanism, when the main tray body 1 and the auxiliary tray body 2 need to be replaced, the staff rotates the threaded plugs 404 in sequence to disengage the three threaded plugs 404 from the three threaded holes 403, thereby removing the main tray body 1 and the two auxiliary tray bodies 2. Since the rubber sleeve 405 has great elasticity, the new main tray body 1 and the auxiliary tray body 2 are assembled together by means of the rubber sleeve 405, and the three threaded plugs 404 are rotated into the three threaded holes 403 again, and the main tray body 1 and the auxiliary tray body 2 are filled with impression materials, such as alginate impression materials, etc., so that the tray body can be easily replaced without discarding the handle 7. Compared with the prior art, unnecessary waste is avoided. In addition, a plurality of accommodating holes are provided on the main tray body 1 and the auxiliary tray body 2 to accommodate excess impression materials, so as to prevent the impression materials from accumulating too much on the tray and affecting the accuracy of the impression.

[0042] Reference Figure 1-8The angle adjustment mechanism includes a fixed plate 501, a fixed rod 502 and a moving rod 503. The fixed plate 501 is rotatably mounted on the left side of the threaded plug 404. The fixed plate 501 is provided with three fixed rods 502, which are rotatably sleeved on the surface of one of the fixed plates 501. The surfaces of the other two fixed plates 501 are rotatably sleeved with moving rods 503. By setting the angle adjustment mechanism, the two moving rods 503 are moved in opposite directions at the same time. Since the moving rod 503 and the fixed plate 501 are hinged, the angle of the fixed plate 501 changes. Due to the gap between the fixed plate 501 and the threaded plug 404, the angle of the fixed plate 501 changes. The rotating connection, without affecting the rotation of the threaded plug 404, allows the fixing plate 501 to drive the threaded plug 404 to change its angle. Since the threaded plug 404 is threadedly installed inside the threaded hole 403, and the two auxiliary tray bodies 2 are made of rubber material, the angle of the auxiliary tray body 2 changes with the pulling of the threaded plug 404, so that the angle of the two auxiliary tray bodies 2 can be adjusted, so that the shape of the tray after the main tray body 1 and the auxiliary tray body 2 are assembled is no longer fixed, and can be adjusted according to different tooth and jaw shapes in actual use. Compared with the prior art, it has a wider range of applications;

[0043] Reference Figure 1-8 , the height adjustment mechanism includes a accommodating box 601 and a supporting plate 602, the accommodating box 601 is slidably sleeved on the surface of the lifting box 3, the supporting plate 602 is fixedly installed on the right side of the accommodating box 601, and the left side of the fixing rod 502 is fixedly connected to the right side of the supporting plate 602. By setting the height adjustment mechanism, the lifting box 3 is moved upward, driving the moving rod 503 to move upward, and the relative height between the lifting box 3 and the accommodating box 601 changes. Since the fixing rod 502 is fixedly installed on the supporting plate 602, the relative height between the fixing rod 502 and the moving rod 503 changes, so that the two auxiliary tray bodies 2 move upward relative to the main tray body 1, so that the shape of the tray after the main tray body 1 and the auxiliary tray body 2 are spliced ​​changes, so that the auxiliary tray bodies 2 on both sides are tilted relative to the main tray body 1, so that when facing some patients with abnormal jaw shapes, the accuracy of the jaw model can still be guaranteed;

[0044] Reference Figure 1-8The main tray body 1 and the auxiliary tray body 2 are both made of rubber material. The right sides of the storage box 601 and the lifting box 3 are both opened. A handle 7 is fixedly installed on the left side of the storage box 601. A support frame 8 is fixedly installed on the bottom of the inner wall of the lifting box 3. A limit frame 9 is fixedly installed on the top of the support frame 8. Two limit slots 10 are provided on the left side of the limit frame 9. The shape of the limit slot 10 is set to a straight slot shape. A sliding shaft 11 is slidably sleeved inside the two limit slots 10. A sub-gear 12 is fixedly installed on the right side of the sliding shaft 11. A connecting rod 13 is rotatably installed on the right side of the sub-gear 12. The right sides of the two connecting rods 13 are respectively fixed to the left sides of the two moving rods 503. Fixed connection, by setting two sub-gears 12, the two sub-gears 12 are moved in opposite directions, and through the rotation connection between the sub-gear 12 and the connecting rod 13, the two sub-gears 12 respectively drive the two connecting rods 13 to move in opposite directions without affecting the rotation of the sub-gear 12. Due to the fixed connection between the connecting rod 13 and the moving rod 503, the two moving rods 503 drive the two threaded plugs 404 to move in opposite directions, thereby adjusting the angles of the two sub-tray bodies 2. The limiting groove 10 can limit the sub-gear 12, so that the sub-gear 12 can only move along the direction of the limiting groove 10;

[0045] Reference Figure 1-8A slide groove 14 is provided on the left side of the accommodating box 601, and a rotating rod 15 is slidably installed inside the slide groove 14. The rotating rod 15 is located above the limiting frame 9, and a rotating handle 16 is fixedly installed on the left side of the rotating rod 15. The rotating handle 16 and the handle 7 are arranged alternately, and the rotating rod 15 is rotatably sleeved on the side wall of the lifting box 3. A main gear 17 is fixedly installed on the right side of the rotating rod 15, and the main gear 17 and the two sub-gears 12 are meshed and connected. A first rotating rod 18 is rotatably installed on the right side of the main gear 17, and the left side of the first rotating rod 18 is rotatably connected to one of the sub-gears 12. A second rotating rod 19 is hinged inside the first rotating rod 18, and the left side of the second rotating rod 19 is rotatably connected to another sub-gear 12. Bolts 24 are fixedly installed on the left sides of the two sliding shafts 11, and nuts 25 are threadedly installed on the surface of the bolts 24. A patch 26 is fixedly installed on the top of the nut 25. The bottom of the patch 26 is in contact with the top of the limit frame 9, and the length of the patch 26 is longer than the length of the bolt 24. By setting the main gear 17, the staff rotates the rotating handle 16, thereby driving the rotating rod 15 and the main gear 17 to rotate. The meshing connection between the main gear 17 and the two sub-gears 12 makes the two sub-gears 12 rotate in the same direction. Due to the fixed connection between the sub-gear 12 and the sliding shaft 11, the sliding shaft 11 drives the bolt 24 to rotate. Due to the threaded connection between the bolt 24 and the nut 25, and the close contact between the patch 26 and the limit frame 9, the nut 25 is moved closer to or away from the limit frame 9 through the rotation of the bolt 24, and a gasket is sleeved on the surface of the bolt 24, and the gasket is set between the nut 25 and the limit frame 9, so that when the nut 25 moves to the preset position in the direction close to the limit frame 9, the sub-gear 12 is locked;

[0046] Reference Figure 1-8, a limiting strip 20 is fixedly installed inside the lifting box 3, and the left side of the limiting strip 20 is set as an opening. A lifting block 21 is rotatably installed on the right side of the main gear 17 through a connecting shaft. The lifting block 21 is slidably sleeved inside the limiting strip 20, and a screw rod 22 is rotatably installed on the bottom of the inner wall of the accommodating box 601. The top of the screw rod 22 penetrates to the top of the accommodating box 601, and a lifting handle 23 is fixedly installed on the top of the screw rod 22. The screw rod 22 is sleeved inside the lifting block 21, and the screw rod 22 and the lifting block 21 are threadedly connected. By setting the limiting strip 20 and the lifting block 21, the staff unlocks the sub-gear 12 by twisting the rotating handle 16, and then twists the lifting handle 23 to rotate the screw rod 22. Through the threaded connection between the screw rod 22 and the lifting block 21, and the limiting strip 20, the lifting block 21 moves upward. Since the lifting block 21 is rotatably connected to the main gear 17 through the connecting shaft, Without affecting the rotation of the main gear 17, the lifting block 21 drives the main gear 17 to move upward. Since the overlapping ends of the first rotating rod 18 and the second rotating rod 19 are located at the center of the main gear 17, the other ends of the first rotating rod 18 and the second rotating rod 19 are respectively located at the center of the two sub-gears 12. Through the cooperation of the first rotating rod 18 and the second rotating rod 19, and the limiting effect of the limiting groove 10 on the sliding shaft 11, the two sub-gears 12 are moved in relative directions, thereby adjusting the angles of the two sub-tray bodies 2. When the height of the two sub-tray bodies 2 needs to be adjusted, when the lifting block 21 is raised to a preset height by rotating the lifting handle 23, the lifting block 21 squeezes the top of the inner wall of the limiting strip 20, thereby driving the lifting box 3 to move upward through the limiting strip 20, so that the lifting box 3 drives the two sub-gears 12 to move upward, so that the height of the two sub-tray bodies 2 is adjusted.

[0047] Specifically, the working process or working principle of the oral dental model tray is as follows: during use, when the main tray body 1 and the auxiliary tray body 2 need to be replaced, the staff rotates the threaded plugs 404 in sequence to disengage the three threaded plugs 404 from the three threaded holes 403, thereby removing the main tray body 1 and the two auxiliary tray bodies 2. Since the rubber sleeve 405 has great elasticity, the new main tray body 1 and the auxiliary tray body 2 are assembled together by means of the rubber sleeve 405, and the three threaded plugs 404 are rotated into the three threaded holes 403 again, and the impression material, such as alginate impression material, is filled in the interior of the main tray body 1 and the auxiliary tray body 2. When the angles of the two auxiliary tray bodies 2 need to be adjusted, the staff rotates the rotating handle 16, thereby driving the rotating rod 15 and the main gear 17 to rotate. The meshing connection between the main gear 17 and the two auxiliary gears 12 makes the two auxiliary gears 12 rotate in the same direction. Due to the fixed connection between the auxiliary gears 12 and the sliding shaft 11, the sliding shaft 11 drives the bolt 24 to rotate. Due to the threaded connection between the bolt 24 and the nut 25, and the close contact between the patch 26 and the limit frame 9, the nut 25 is moved away from the limit frame 9 through the rotation of the bolt 24, the auxiliary gear 12 is unlocked, and the lifting handle 23 is turned to make the screw rod 22 The lifting block 21 is rotated, and the threaded connection between the screw rod 22 and the lifting block 21, and the limiting position of the limiting bar 20, make the lifting block 21 move upward. Since the lifting block 21 is connected to the main gear 17 through the connecting shaft, the lifting block 21 drives the main gear 17 to move upward without affecting the rotation of the main gear 17. Through the cooperation of the first rotating rod 18 and the second rotating rod 19, and the limiting effect of the limiting groove 10 on the sliding shaft 11, the two sub-gears 12 are moved in relative directions. Through the rotational connection between the sub-gear 12 and the connecting rod 13, the two sub-gears 12 are respectively driven without affecting the rotation of the sub-gear 12. The two connecting rods 13 move in opposite directions. Due to the fixed connection between the connecting rod 13 and the moving rod 503, the two moving rods 503 drive the two threaded plugs 404 to move in opposite directions, thereby adjusting the angles of the two sub-tray bodies 2. When the height of the two sub-tray bodies 2 needs to be adjusted, the lifting block 21 is raised to a preset height by rotating the lifting handle 23. The lifting block 21 squeezes the top of the inner wall of the limiting bar 20, thereby driving the lifting box 3 to move upward through the limiting bar 20, so that the lifting box 3 drives the two sub-gears 12 to move upward, so that the height of the two sub-tray bodies 2 is adjusted.

Claims

1. An oral dental model tray, comprising a main tray body (1), two auxiliary tray bodies (2) and a lifting box (3), characterized in that: A replacement mechanism, the replacement mechanism comprising: A first fixing block (401), the first fixing block (401) being fixedly mounted on the left side of the main tray body (1), and a second fixing block (402) being fixedly mounted on the left side of each of the two auxiliary tray bodies (2), and a threaded hole (403) being provided on the left side of each of the first fixing block (401) and the second fixing block (402); Threaded plugs (404), three of which are provided, and the three threaded plugs (404) are respectively threadedly installed inside the three threaded holes (403); A rubber sleeve (405) is provided between the main tray body (1) and the two auxiliary tray bodies (2); the main tray body (1) and the two auxiliary tray bodies (2) are combined into a horseshoe shape; An angle adjustment mechanism, the angle adjustment mechanism is arranged inside the lifting box (3) and is used to adjust the angle between the two auxiliary tray bodies (2) and the main tray body (1); A height adjustment mechanism is arranged inside the lifting box (3) and is used to adjust the relative height between the two auxiliary tray bodies (2) and the main tray body (1).

2. An oral dental model tray according to claim 1, characterized in that: The angle adjustment mechanism comprises: A fixing plate (501), the fixing plate (501) being rotatably mounted on the left side of the threaded plug (404), and three fixing plates (501) are provided; A fixed rod (502) is rotatably sleeved on the surface of one of the fixed plates (501), and movable rods (503) are rotatably sleeved on the surfaces of the other two fixed plates (501).

3. An oral dental model tray according to claim 2, characterized in that: The height adjustment mechanism comprises: A containing box (601), wherein the containing box (601) is slidably sleeved on the surface of the lifting box (3); A support plate (602), wherein the support plate (602) is fixedly mounted on the right side of the containing box (601), and the left side of the fixing rod (502) and the right side of the support plate (602) are fixedly connected.

4. An oral dental model tray according to claim 3, characterized in that: The main tray body (1) and the auxiliary tray body (2) are both made of rubber material. The right sides of the containing box (601) and the lifting box (3) are both opened. A handle (7) is fixedly installed on the left side of the containing box (601). A support frame (8) is fixedly installed on the bottom of the inner wall of the lifting box (3). A limiting frame (9) is fixedly installed on the top of the support frame (8). Two limiting grooves (10) are provided on the left side of the limiting frame (9). The shape of the limiting groove (10) is set to be a straight slot shape.

5. An oral dental model tray according to claim 4, characterized in that: A sliding shaft (11) is slidably sleeved inside the two limit grooves (10), a sub-gear (12) is fixedly installed on the right side of the sliding shaft (11), a connecting rod (13) is rotatably installed on the right side of the sub-gear (12), and the right sides of the two connecting rods (13) are fixedly connected to the left sides of the two moving rods (503) respectively.

6. An oral dental model tray according to claim 5, characterized in that: The left side of the accommodating box (601) is provided with a slide groove (14), and a rotating rod (15) is slidably installed inside the slide groove (14). The rotating rod (15) is located above the limiting frame (9). A rotating handle (16) is fixedly installed on the left side of the rotating rod (15). The rotating handle (16) and the handle (7) are arranged alternately. The rotating rod (15) is rotatably sleeved on the side wall of the lifting box (3). A main gear (17) is fixedly installed on the right side of the rotating rod (15). The main gear (17) and the two sub-gears (12) are meshed and connected.

7. An oral dental model tray according to claim 6, characterized in that: A first rotating rod (18) is rotatably mounted on the right side of the main gear (17), and the left side of the first rotating rod (18) is rotatably connected to one of the auxiliary gears (12). A second rotating rod (19) is hinged inside the first rotating rod (18), and the left side of the second rotating rod (19) is rotatably connected to another auxiliary gear (12).

8. An oral dental model tray according to claim 6, characterized in that: A limiting strip (20) is fixedly installed inside the lifting box (3), and the left side of the limiting strip (20) is opened. A lifting block (21) is rotatably installed on the right side of the main gear (17) via a connecting shaft, and the lifting block (21) is slidably sleeved inside the limiting strip (20).

9. An oral dental model tray according to claim 8, characterized in that: A screw rod (22) is rotatably mounted on the bottom of the inner wall of the accommodating box (601), the top of the screw rod (22) penetrates to the top of the accommodating box (601), a lifting handle (23) is fixedly mounted on the top of the screw rod (22), the screw rod (22) is sleeved inside the lifting block (21), and the screw rod (22) and the lifting block (21) are threadedly connected.

10. The oral dental model tray according to claim 4, characterized in that: Bolts (24) are fixedly installed on the left sides of the two sliding shafts (11), nuts (25) are threadedly installed on the surface of the bolts (24), and a patch (26) is fixedly installed on the top of the nut (25), the bottom of the patch (26) is in contact with the top of the limit frame (9), and the length of the patch (26) is longer than the length of the bolt (24).

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